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  1. turbodave231

    1986-87 Stock Cam Specifications

    Yes, There is nothing wrong with a stock cam for a stock engine. I ran a 10.83@125 with a stock cam/stock engine. Other racers have gone even faster with the stock cam.
  2. turbodave231

    Turbo Crank?

    You have a turbo crank. The cranks were essentially the same (turbo crank) from 83-89 Only the turbo engines got rolled fillets on both the rods and mains. The NA 3.8 engines got a crank without the rolled fillets. Most 4.1 engines got the rolled fillet cranks too.
  3. turbodave231

    I'm rebuilding my engine......

    Recommendations: Replace or abandon (do not use) the oil cooler in the radiator (metal from this failure will undoubtly be in there) Your stock cam can be reground and reused (Delta Cam has reground and parkerized many stock cams for me. This is very budget friendly) Replace the stock plastic...
  4. turbodave231

    Checking a main bearing

    This engine has been tested under actual running conditions prior to engine installation. During Engine testing, a special "break-in" oil was used. All critical engine parameters including the engine management datastream were monitored. No unusual conditions were were noted. Only high...
  5. turbodave231

    Original GNX Book, Owner's Manual Supplement and GNX Lapel Pin

    Some Rare and Original Items from my collection of Buick : Here is the ultimate GNX package for that discerning GNX owner or GNX enthusiast. The Book by Martyn Schorr is the original publication new in the box (not a reprint) The Owner's Manual Supplement is from the original printing (I...
  6. turbodave231

    Champion Irons - Viton or teflon valve stem seals?

    Looking at the pictures of these FelPro seals, They look like the original type seal. DR
  7. turbodave231

    Champion Irons - Viton or teflon valve stem seals?

    Here is an ARTICLE on valve stem seals you might find interesting.
  8. turbodave231

    Nice article in Engine Builder Magazine about Chris Lyons

    Good Luck at the event Chris!
  9. turbodave231

    Champion Irons - Viton or teflon valve stem seals?

    What were you running for clearance? (Valve stem to guide that is) Being too tight can cause galling and guide wear. Both Viton and Teflon seals will dry up your guides which makes guide wear issues even worse. Getting good clearance allows a bit more oil down the guide for lubrication...
  10. turbodave231

    Nice article in Engine Builder Magazine about Chris Lyons

    Read this: Article Well Done Chris!!!
  11. turbodave231

    1986-87 Stock Cam Specifications

    Here are the details:
  12. turbodave231

    Stock Cam dimensions

    I didn't realize Melling was producing a stock cam. Good info!!
  13. turbodave231

    Stock Cam dimensions

    Mark, I just posted a sticky thread that has the Specs for the stock cam. The lift listed is VALVE lift not LOBE lift. The stock rocker ratio is 1.55, I believe. If you take valve lift and divide it by 1.55 you get lobe lift. I have successfully had the stock cams re-ground by Delta Cam in...
  14. turbodave231

    1986-87 Stock Cam Specifications

    The Specifications for the Stock 86-87 Cam: Duration @.050 Intake: 192 degrees Exhaust: 196 degrees Valve Lift Intake .393 Exhaust .408 Lobe Separation Angle (LSA) 107 degrees Intake Lobe Centerline 107 degrees
  15. turbodave231

    Billet Hydraulic Roller Cam and Cam Drive parts- Sold

    Sold
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